Year Monthly Income
| 2010 | 2011 | 2012 | 2013 |
Below 7000 Yuan | 3606 | 3868 | 3501 | 3958 |
7000 Yuan to 22,000 Yuan | 376 | 497 | 557 | 677 |
Above 22,000 Yuan | 42 | 68 | 79 | 97 |
Summary | 4024 | 4433 | 4137 | 4732 |